Joseph ii



(No Model.)

-J. H. BANKS.

STEAM TRAP.

No. 271.400. Patented Jan.30,1883.

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W-ITNESSBS: Y INVENTOR 30mm Hemm'cmks I BY ma ATTURNEYS NITED STATESPATENT Gerlos. 4

JOSEPH Il. BANKS, OF NEW YORK, N. Y.

STEAM-TRA P.

SPEQIFIGATION forming part of Letters Patent No. 271,400, dated January30, 1883.

Application tiled October 24, 1882.

To all whom 'it may concern:

Beit known that I, JOSEPH HENRY BANKS, a citizen of the United States,residing at New York, in the county and State ot' New York, haveinvented new and uset'ul Improvements in Steam-Traps, ot' which thefollowing is a specification.

This invention relates to that class of steamtrapswhich are applied tosteam heating apparatus, and which serve to return the water ofvcondensation from the heating-coils to the boiler.

The novel and peculiar construction of my trap ispointed out in thefollowingspecication andillustrated in the accompanying drawings, inwhichc Figure l represents a vertical section. Fig. 2 is a horizontalsection in the plane ww, Fig. l, showing the pipe-connection. Fig. 3 isa horizontal section in the planeyy, Fig. l.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the drum or reservoir in whichthe Water of condensation accumulates. From this drum ex tends a pipe,B, which connects by a branch, b, with a pipe, G,extending from areceiver, D. In the branch b is a check-valve, b', Fig. 2. The receiverD connects by a pipe, d, with the upper compartment, e, of adiaphragm-chamber, E. and from the pipe d extends a branch pipe, d', tothe boiler, (not shown in the drawings,) which supplies the steam. Thebranch pi pe d is provided with a check-valve, d2. From the pipeGextendsa branch pipe, c,into the top of a drum, F, and .from the bottomof this drum extends a pipe, f, into the bottom of the diaphragm-chamberE, so 'as to forma communication between the lower compartment, c, ofthe chamber E andthe interior of the drum F. The upper end ot' the pipeC communicates by a channel, c', with a steam-chest, G, on the bottomotl which is seated the equalizing valve H., which is constructed like aslide-valve, and beneath it is the exhaust-portg. Motion is imparted tosaid valve by a piston, I, which works in a cylinder, J. This cylindercommunicates by steam-portsjj with a steam-chest, K, and by anexhaust-port, jz, with the open atmosphere. On the bottom ot' thesteam-chest K is seated a slide-valve, 7c, to which motion is impartedby a lever, 7c', mounted on a rockshaft, k2, which extends through theside of (No model.)

Fig. 3, is mounted a lever, c4, the inner end ot' which is pivoted toafoot-piece, c5, that rests upon the elastic or ilexible diaphragm e6.The

steainchest K receives steam from the boiler through a pipe, 705, andthe steam-chest Gr through a pipe, g.

At the moment the different parts are in the position shown in Fig. lthecolumn of Water, acting from the drum F upon the under side ot thediaphragm c, forces this diaphragm up against the action of the weightk, the slidevalve Kis moved to uncover the steam-portj, the piston Imoves the equalizing-valve H so as to bring the port c'. andconsequently the interior of the receiver D, in communication with theexhaust-port g. At the same time a small jet of water rushes into thereceiver D through the nozzle d3. the remaining steam in the receiver Dis condensed, a partial vacuum is formed therein, and the condensedwater from the drum A rushes up through pipes B b and iillsthe receiverD. The pressure of the water on both sides ot' the diaphragm e6 hecomesnow equalized, and the weight 7a4 depresses the diaphragm. Theslide-valve lc is thereby moved so as to uncover the steamportj, and thepiston l moves the equalizingvalve H so as to uncover the steam-port c'.Steam has free access from the chest Gr to the receiver D, and the watercontained inthis receiver is forced out through pipe d into the boiler.As soon as the receiver is empty the column ot' Water from the drum Fforces the diaphragm up and the action already described is repeated.

In order to increase the capacity ot' the apparatus, I have applied asecond receiver, L, which connects by a pipe, Z, and port l with thesteam-chest Gr, by a branch pipe, l2, Fig. 2, with the pipe B, and by apipe, l, with the boiler. There is no connection withthediaphragm-chalnber E. When the eqnalizingvalve brings the port lincommunication with the exhaust-port g the receiver L receives water fromthe drum A, and when the equalizingvalve uncovers the port Z the steamfrom the the nozzles dn and l* connect with a water-tank or reservoir.(Not shown in thedrawings.) These nozzles,howcver, are not absolutelynecessary, since the condensed water in the drum A is under a certainpressure not quite equal to the boiler-pressure, and the water from thisdrum is forced into the receivers whenever the same arebroughtincommunication with the exhaustport g.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination of a reservoir, A,for the water of condensation, areceiver, D, connected with the reservoir by a pipe, B, a chamber, E,divided by a. horizontal diaphragm, a waterdrnm, F, pipes connecting thereceiver and water-drum with the cham ber above and below the diaphragm,respectively, and thc receiver having a pipe, d', to connect with aboiler, a steam-chest, G, connected with the receiver and the drum, andthe eq ualizingslide-valve H,

arranged in the steam-chest, and controlled by the position of thediaphragm,substantia.lly in the manner and for the purposes described.

2. The combination, substantially as hereinbefore described, of thereceiver D and its connections with the reservoir A and with thesteam-boiler, the diaphragm-chamber E', the drum F, the equalizingvalveH, the steampiston I, working in the cylinder J, and the slide-valve k,which is actuated by the diaphragm e and weight kr.

3. The combination, substantially as hereinbefore described,ot` thereceiver D and its connections with the reservoir A and with thesteam-boiler, the diaphragm-chamber E, connected to the receiver L, thedrum F, and the equalizing-valve H, the position of which is controlledby the diaphragm e5 and the receiver L.

In testimony whereof` I have hereunto set my hand and seal in theprese-nce of two subscrib- 4 ing witnesses.

JOSEPH HENRY BANKS. [L. s.]

WVitnesscs:

W. HAUFF, E. F. KASTENHUBER.

